The two characters "I" and Mr. Xu in the article do not need to be too entangled in whether they exist in real life. I prefer to make them a microcosm in the world: they have known each other since childhood, but they are not childhood sweethearts; they have experienced confusion and loss, but it is not as dramatic as in idol dramas; they do not mention love to each other, but the confirmation look is natural and so interesting. At this point, I prefer everyone to read "Xia Yushu Xiansen" as an essay. This book is what I moved from my heart, and it was written by typing on the keyboard. It can be read casually and freely. I hope you will like these words when you read "Xia Yushu Xiansen" in the future.